Secondary fiber is fibrous material that has already been through the manufacturing process and is used once again as a raw material. The demand for recycled products has risen over the past years, driven by factors such as concern for the environment and consumer demand. The quality has improved greatly in the past few years due to technological advances.
The fibers for recycling come from different sources. For example, scrap and paper trimmings from the manufacture of paper is recycled internally inside paper mills. Post-consumer waste consisting of old corrugated containers, magazines, old newspapers, office paper and old telephone directories is collected, reduced to pulp and re-used for new products.
These paper and paperboard products are used every day and make up a large portion of municipal waste. As a result, they offer the greatest opportunity to recycle. When recycled fibers are used, no further trees need to be cut down to make products and landfill volumes are reduced. Another benefit is that less energy and water are used in the pulping process than required with virgin fibers.
The process of recycling fibers involves the breaking down of the used paper with chemicals and water. Chopping it up and heating it breaks it down further. It becomes a pulp and is strained through screens to remove any glue or plastic. It has to go through a process of cleaning, de-inking and bleaching before it can be made into new products.
The main obstacles to increasing the use of waste paper are technical in nature. For example, very fast printing machines require strength of fibers. De-inking and dealing with other contaminants has to be accomplished without compromising strength. The problems relating to de-inking are being dealt with successfully as technology improves. Experimentation with certain enzymes is proving very successful in solving many other problems.
The quality of products produced from recycled fibers has improved dramatically over the past few years. They are now able to compete with products made from primary fibers with regard to brightness, opacity and smoothness. The price too has become competitive. Just about every paper company now produces products with recycled content and the wide range and quality satisfies the demands of even the most discerning consumers.
The use of chlorine in paper making to make the paper brighter has become an issue in recent years. The reason for this is that a by-product of chlorine bleaching is dioxin, a known human carcinogen. Most paper mills now use bleaching procedures that produce less dioxin. The practice of chlorine-free bleaching of recycled fibers has become prevalent world wide with alternative bleaching agents being used.
Just about every paper company today produces some products with recycled content as the demand continues to rise. At present about 40 percent of the total paper production in the world is based on secondary fiber. Users of recycled products no longer have to compromise on quality. A wide variety of products are available with the required smoothness and brightness and are now available at competitive prices.
The fibers for recycling come from different sources. For example, scrap and paper trimmings from the manufacture of paper is recycled internally inside paper mills. Post-consumer waste consisting of old corrugated containers, magazines, old newspapers, office paper and old telephone directories is collected, reduced to pulp and re-used for new products.
These paper and paperboard products are used every day and make up a large portion of municipal waste. As a result, they offer the greatest opportunity to recycle. When recycled fibers are used, no further trees need to be cut down to make products and landfill volumes are reduced. Another benefit is that less energy and water are used in the pulping process than required with virgin fibers.
The process of recycling fibers involves the breaking down of the used paper with chemicals and water. Chopping it up and heating it breaks it down further. It becomes a pulp and is strained through screens to remove any glue or plastic. It has to go through a process of cleaning, de-inking and bleaching before it can be made into new products.
The main obstacles to increasing the use of waste paper are technical in nature. For example, very fast printing machines require strength of fibers. De-inking and dealing with other contaminants has to be accomplished without compromising strength. The problems relating to de-inking are being dealt with successfully as technology improves. Experimentation with certain enzymes is proving very successful in solving many other problems.
The quality of products produced from recycled fibers has improved dramatically over the past few years. They are now able to compete with products made from primary fibers with regard to brightness, opacity and smoothness. The price too has become competitive. Just about every paper company now produces products with recycled content and the wide range and quality satisfies the demands of even the most discerning consumers.
The use of chlorine in paper making to make the paper brighter has become an issue in recent years. The reason for this is that a by-product of chlorine bleaching is dioxin, a known human carcinogen. Most paper mills now use bleaching procedures that produce less dioxin. The practice of chlorine-free bleaching of recycled fibers has become prevalent world wide with alternative bleaching agents being used.
Just about every paper company today produces some products with recycled content as the demand continues to rise. At present about 40 percent of the total paper production in the world is based on secondary fiber. Users of recycled products no longer have to compromise on quality. A wide variety of products are available with the required smoothness and brightness and are now available at competitive prices.
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